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Finding the Fourth Proportional to 60,643.23, 91,007.90 and 48,938.68

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Solution

The fourth proportional to 60,643.23, 91,007.90 and 48,938.68 is: 73,442.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,643.23 : 91,007.90 = 48,938.68 : x
  2. Step 2: Convert to fraction form
    60,643.23/91,007.90 = 48,938.68/x
  3. Step 3: Cross multiply
    60,643.23x = 91,007.90 × 48,938.68
  4. Step 4: Simplify right side
    60,643.23x = 4,453,806,823.44
  5. Step 5: Solve for x
    x = 4,453,806,823.44/60,643.23
  6. Step 6: Final answer
    x = 73,442.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.